6843513745 has 16 divisors (see below), whose sum is σ = 8310048768. Its totient is φ = 5409936000.

The previous prime is 6843513739. The next prime is 6843513749. The reversal of 6843513745 is 5473153486.

It is not a de Polignac number, because 6843513745 - 2⁵ = 6843513713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6843513695 and 6843513704.

It is not an unprimeable number, because it can be changed into a prime (6843513749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137917 + ... + 180853.

It is an arithmetic number, because the mean of its divisors is an integer number (519378048).

Almost surely, 2^6843513745 is an apocalyptic number.

It is an amenable number.

6843513745 is a deficient number, since it is larger than the sum of its proper divisors (1466535023).

6843513745 is a wasteful number, since it uses less digits than its factorization.

6843513745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43320.

The product of its digits is 1209600, while the sum is 46.

The square root of 6843513745 is about 82725.5326063241. The cubic root of 6843513745 is about 1898.5689820314.

The spelling of 6843513745 in words is "six billion, eight hundred forty-three million, five hundred thirteen thousand, seven hundred forty-five".